PURPOSE:To store the number of called parties naturally, by receiving the called party number of sound edit and synthesis while the called party responds, through a voice service means provided to an exchange having an abbreviated dial function. CONSTITUTION:A main channel of an exchange having abbreviated dial function is provided with a voice service device 11 sound-editing and synthesizing a called party number to a prescribed pattern, and a scanning device 12 connecting and scanning a trunk circuit 9 for confirming a response signal of the called party and indicating the stop of output of the device 11. When a caller dials an abbreviated number, the output of the device 11 is received until the called party responds.
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